Expose the surface of the ocean to an atmosphere with ever more carbon dioxide, and the gas and waters will produce carbonic acid, lowering ph on a planetary scale.
要是海洋的表面与含更高二氧化碳的大气层接触，那么水和气会产生更多的碳酸，在全球范围内降低PH值。
The ore was heated in the kilns to drive off water and carbonic acid gas.
矿石被放入窑里加热，蒸发掉水和碳酸气。
Also eat some fruits, milk and a small amount of soft drinks containing carbonic acid gas.
还可吃一些水果，牛奶以及少量含碳酸气的饮料。
Also eat some fruits, milk and a small amount of soft drinks containing carbonic acid gas.
还可吃一些水果，牛奶以及少量含碳酸气的饮料。
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